For most of the last decade, energy efficiency quotes came with a familiar line at the bottom: subtract a federal tax credit. That line is no longer accurate for work completed in 2026.
Legislation signed in July 2025 moved up the end date for both of the residential energy credits homeowners had been using. The Residential Clean Energy Credit, which covered solar and battery storage, and the Energy Efficient Home Improvement Credit, which covered items such as heat pumps, insulation, windows, and exterior doors, both stopped applying to property placed in service after December 31, 2025. There is no phase down and no reduced 2026 version.
The Date That Matters Is Completion, Not Payment
This is the detail that has caught homeowners out. Eligibility was tied to when the installation was completed and the property was placed in service, not when the contract was signed or the deposit was paid. A system ordered in the autumn of 2025 but finished in January 2026 falls on the wrong side of the line.
If your work was finished in time, the credit is still claimed on your 2025 return, and unused amounts from a qualifying 2025 expenditure may generally be carried forward under the existing rules. That is a question for a tax professional rather than a contractor.
Watch for Stale Numbers in Quotes
Sales materials take a while to catch up with tax law. If a proposal you receive this year still shows a federal credit reducing your net cost, treat it as an error rather than an offer, and ask for the quote to be restated without it.
The same applies to payback and savings estimates. A solar proposal built on a thirty percent federal reduction produces a very different break even year than the same system priced without one. We looked at how that math has shifted in what solar payback looks like without the federal credit.
What Still Exists
The federal credits are not the whole incentive picture, and the rest of it did not disappear.
State and utility rebates. These are separate programs with their own funding and rules, and they continue to operate. They are also the reason two identical homes in different states can end up with very different net costs for the same equipment.
State administered home energy rebate programs. Funding allocated to states for home efficiency and electrification rebates is being run by state energy offices, and the rollout has been uneven. Some states have been paying out for a while and have already reserved their single family funds, others are still in the design phase. Availability where you live is worth checking before you assume anything. We covered the current picture in state heat pump rebates are running on different clocks.
Third party ownership for solar. Leases and power purchase agreements are structured differently from a cash or loan purchase, and the tax treatment sits with the company that owns the system rather than with you. That changes the comparison rather than removing it, and it is covered in buying, leasing, or financing solar in 2026.
Insurance related credits. Some carriers reduce premiums for specific upgrades such as impact rated openings, certain roof assemblies, or monitored security systems. These are not tax incentives, but they are real money and they are frequently overlooked.
How to Check What Applies to You
Incentive programs change frequently, and the reliable sources are the official ones rather than a contractor's brochure:
- The IRS pages on energy credits, for anything you are claiming on a return
- Your state energy office, for state administered rebate programs
- Your electric or gas utility, for equipment rebates and program conditions
- The DSIRE database, for a state by state view of what exists
- A tax professional, before you rely on any of it in a budget
One practical warning that appears repeatedly in state program guidance: several programs require approval or enrollment before equipment is purchased or installed. Buying first can disqualify a project that would otherwise have qualified.
What This Means for Planning
The end of the federal credits does not make efficiency work pointless. It changes the arithmetic, and it moves more of the decision onto the things that were always the larger part of it: your utility rates, the condition of what you are replacing, how long you plan to stay, and the spread between the quotes you gather.
That last one is worth more attention now than it was when a federal credit was smoothing over price differences. Comparing several detailed quotes for the same scope, and understanding what a written scope of work should cover, is the part of the process still fully under your control.
If you are planning an energy related project this year, tell us what you have in mind and we will connect you with contractors who serve your area. It is free to use and you are never obligated to hire anyone.